xref: /netbsd-src/lib/libc/include/extern.h (revision 5bbd2a12505d72a8177929a37b5cee489d0a1cfd)
1 /*	$NetBSD: extern.h,v 1.19 2011/09/19 21:24:58 joerg Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 Christos Zoulas.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #include <stdarg.h>
28 
29 __BEGIN_DECLS
30 extern char *__minbrk;
31 int __getcwd(char *, size_t);
32 int __getlogin(char *, size_t);
33 int __setlogin(const char *);
34 void _resumecontext(void) __dead;
35 const char *__strerror(int , char *, size_t);
36 const char *__strsignal(int , char *, size_t);
37 char *__dtoa(double, int, int, int *, int *, char **);
38 void __freedtoa(char *);
39 int __sysctl(const int *, unsigned int, void *, size_t *, const void *, size_t);
40 
41 struct sigaction;
42 int __sigaction_sigtramp(int, const struct sigaction *,
43     struct sigaction *, const void *, int);
44 
45 #ifdef WIDE_DOUBLE
46 char *__hdtoa(double, const char *, int, int *, int *, char **);
47 char *__hldtoa(long double, const char *, int, int *, int *,  char **);
48 char *__ldtoa(long double *, int, int, int *, int *, char **);
49 #endif
50 
51 struct syslog_data;
52 void	syslog_ss(int, struct syslog_data *, const char *, ...)
53     __attribute__((__format__(__printf__,3,4)));
54 void	vsyslog_ss(int, struct syslog_data *, const char *, va_list);
55 void    vsyslog_ss(int, struct syslog_data *, const char *, va_list)
56     __attribute__((__format__(__printf__,3,0)));
57 void	syslogp_ss(int, struct syslog_data *, const char *, const char *,
58     const char *, ...) __attribute__((__format__(__printf__,5,0)));
59 void	vsyslogp_ss(int, struct syslog_data *, const char *, const char *,
60     const char *, va_list) __attribute__((__format__(__printf__,5,0)));
61 
62 int	snprintf_ss(char * __restrict, size_t, const char * __restrict, ...)
63     __attribute__((__format__(__printf__, 3, 4)));
64 int	vsnprintf_ss(char * __restrict, size_t, const char * __restrict,
65     va_list) __attribute__((__format__(__printf__, 3, 0)));
66 
67 void	_malloc_prefork(void);
68 void	_malloc_postfork(void);
69 
70 __END_DECLS
71